Integration Control and Panel Assembly Communication Stop Mode [12/2019 - 10/2022]: Procedure

1. Disconnect the cable from the negative (-) auxiliary battery terminal.
2. Disconnect the H8 integration control sub-assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Integration Control Sub-assembly)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H8-32 (CANP) - H8-31 (CANN)	Cable disconnected from negative (-) auxiliary battery terminal	54 to 69 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (INTEGRATION CONTROL SUB-ASSEMBLY) 

Result: 

OK 

See step  2

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Integration Control and Panel Sub-assembly)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H8-20 (GND) - Body ground	Cable disconnected from negative (-) auxiliary battery terminal	Below 1 Ω

2. Reconnect the cable to the negative (-) auxiliary battery terminal.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H8-1 (B) - Body ground	Ignition switch off	11 to 14 V
   H8-3 (ACC) - Body ground	Ignition switch ACC	11 to 14 V
   H8-4 (IG+) - Body ground	Ignition switch ON	11 to 14 V

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE INTEGRATION CONTROL SUB-ASSEMBLY 

Refer to REMOVAL [12/2019 - 10/2022]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)